Sometimes called “growing zones” or “gardening zones,” hardiness zones refer to a map developed by the USDA that separates the United States into regions based on the average low winter temperatures.

The USDA updated its map of plant hardiness zones for the first time in over a decade. The new map shows that half the country has shifted to warmer zones. The updated zones could allow gardeners to ...

The United States Department of Agriculture (USDA) released a new version of its Plant Hardiness Zone map, the first update since 2012. This new map is a tool used to help gardeners and growers ...

This week the U.S. Department of Agriculture (USDA) released an updated version of its Plant Hardiness Zone Map (PHZM)—a datum used by gardeners and farmers to determine which plants are most likely ...

Whenever you purchase a new perennial plant, shrub, tree, or even seeds, you've probably noticed information about hardiness zones on the plant tag or description. But what does it mean? "Plant ...

Plants covered with frost blankets at the Ritz Carlton Hotel on Amelia Island for this past weekend's freeze which sits in zone 9b representing expected minimum temperatures between 25 to 30 °F.

The USDA cautions against using the plant hardiness zones, which are based on 30-year averages, as indicators for climate change. But gardeners say the maps reflect one of the ways they’re ...

BURLINGTON, Conn. (WFSB) - USDA plant hardiness zones categorize areas based on their average minimum winter temperatures. But with our warming climate many parts of our state have moved to higher ...

The United States Department of Agriculture released an updated version of last year's Plant Hardiness Map to offer a guide for gardeners to understand which plants can survive and thrive based on the ...

Gardeners should always look at their growing climate before choosing plants for their landscapes. The USDA Plant Hardiness Zone Map is the standard by which gardeners can determine which plants are ...

A new Plant Hardiness Zone Map released by the federal government Wednesday shows that temperatures across the country are getting warmer and could affect gardens and crops. The map is designed to ...

A new version of the 'Plant Hardiness' map has been released by the U.S. Department of Agriculture. It enables users to view the average minimum temperatures for separate latitudinal zones -- a useful ...